custom stack Implementation, C#

custom stack Implementation

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //custom stack Implementation
           myStack st = new myStack();
           st.Push(2);
           st.Push(4);
           st.Push(6);
           st.Push(8);
           st.printStack();
           st.Pop();
           st.Pop();
           st.printStack();
       }
      
   }
    
    
    public class myStack
    {
        private int indx;
        private ArrayList list;
        public myStack()
        {
            list = new ArrayList();
            indx = -1;
        }
        public int count
        {
            get { return list.Count; }
        }
        public void Push(object item)
        {
            list.Add(item);
            indx++;
        }
        public object Pop()
        {
            object obj = list[indx];
            list.RemoveAt(indx);
            indx--;
            return obj;
        }
        public void clear()
        {
            list.Clear();
            indx = -1;
        }
        public object peek()
        {
            return list[indx];
        }
        
         public void printStack(){
          Console.WriteLine("\n Stack elements");
           foreach (int i in list) {
            Console.WriteLine(i);
           }
           Console.WriteLine("Number of elements in the stack " + count );
           Console.WriteLine("Does stack contain the number 6 "+list.Contains(6));
        }
    }
    
}


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